论文标题
弹性依赖性波美龙和奥德龙在弹性质子蛋白散射中
Spin-dependent Pomeron and Odderon in elastic proton-proton scattering
论文作者
论文摘要
我们基于威尔逊线和广义TMD（GTMD）的现代配方，基于Pomeron和Odderon的现代配方，引入了高能量的近前任弹性质子（抗）质子散射的新模型。我们在此模型中计算依赖螺旋依赖性的弹性振幅$ ϕ_ {1,2,3,4,5} $，并研究了它们从非线性小$ x $演变方程中的能量依赖性。尽管Pomeron和Odderon一般都促进了螺旋 - 翼翼过程，但在正向限制中，$ t = 0 $仅双螺旋 - 挡泥振幅$ ϕ_2 $，由旋转依赖性的Odderon主导。这可能会影响$ρ$参数的提取以及LHC能量域及以后的总横截面。
We introduce a new model of near-forward elastic proton-(anti)proton scattering at high energy based on the modern formulation of Pomeron and Odderon in terms of Wilson lines and generalized TMDs (GTMDs). We compute the helicity-dependent elastic amplitudes $ϕ_{1,2,3,4,5}$ in this model and study their energy dependence from the nonlinear small-$x$ evolution equations. While both Pomeron and Odderon contribute to helicity-flip processes in general, in the forward limit $t=0$ only the double helicity-flip amplitude $ϕ_2$, dominated by the spin-dependent Odderon, survives. This may affect the extraction of the $ρ$ parameter as well as the total cross section in the LHC energy domain and beyond.
